Uninterruptible power supply



FIG. 1 is a front and upper left perspective view of an uniterruptible power supply in accordance with the present invention;

FIG. 2 is a front view of the uninterruptible power supply of FIG. 1;

FIG. 3 is a top view of the uninterruptible power supply of FIG. 1;

FIG. 4 is a bottom view of the uninterruptible power supply of FIG. 1;

FIG. 5 is a back view of the uninterruptible power supply of FIG. 1; and,

FIG. 6 is a right side view of the uninterruptible power supply of FIG. 1.

Any broken line illustrations in the drawings are not part of the claimed design. 

We claim the ornamental design for a uninterruptible power supply, as shown and described. 